Let CTS/RTS be an option that is selectable for Homebrew Aux Projects

[4thbit]

Is your feature request related to a problem? Please describe.
There doesn't appear to be a way to not have RTS/CTS AND use a direct mount connection. I'm currently using a homebrew Aux to USB adapter that uses an arduino to do the tri-state buffering. When this is used with the Aux driver, it fails on CTS/RTS handshaking. The adapter works fine in WIndows with Celestron tools.

Describe the solution you'd like
It would be nice to have a selection for "Disable CTS/RTS Handshaking - Useful for some homebrew Aux to USB adapters."

Describe alternatives you've considered
Enabled a better detection function that can check to see if it's communicating properly without CTS/RTS? Not sure.

Additional context
This is a simple type of adapter that I used but there are also other projects by this same individual that provide similar functionality.

https://www.cloudynights.com/topic/812944-homebrew-mount-usb-connection-for-aux-port/page-8#entry12324402

[tstibor]

I built also the DIY USB <-> Nexstar AUX relay (see https://github.com/tstibor/usbauxrelay)
and it works with the Celestron AUX driver when selecting "Port Type =USB/HC". I guess selecting this Port Type will
also work with your DIY dongle.

[ijessen]

CTS/RTS handshaking isn't performed when using the "Port Type = USB/HC" option. This supports using microcontroller go-betweens (which is effectively what the HC USB interface is, and I expect also the native USB in some mounts) between the host and the AUX serial lines. I'm using the USB interface within the Celestron SCT focuser with this option and it works great.

With that in mind - I wonder if this issue isn't OBE?